85507753 has 2 divisors, whose sum is σ = 85507754. Its totient is φ = 85507752.

The previous prime is 85507717. The next prime is 85507769. The reversal of 85507753 is 35770558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62773929 + 22733824 = 7923^2 + 4768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85507753 is a prime.

It is not a weakly prime, because it can be changed into another prime (85507853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42753876 + 42753877.

It is an arithmetic number, because the mean of its divisors is an integer number (42753877).

Almost surely, 2^85507753 is an apocalyptic number.

It is an amenable number.

85507753 is a deficient number, since it is larger than the sum of its proper divisors (1).

85507753 is an equidigital number, since it uses as much as digits as its factorization.

85507753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 85507753 is about 9247.0402291760. The cubic root of 85507753 is about 440.5567212613.

The spelling of 85507753 in words is "eighty-five million, five hundred seven thousand, seven hundred fifty-three".